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Indeed. There are 3 criteria studied to classify cyber threats: Confidentiality, Integrity, Availability. While it is possible, an integrity attack on safety re
by crocal 9y ago
Indeed. There are 3 criteria studied to classify cyber threats: Confidentiality, Integrity, Availability. While it is possible, an integrity attack on safety related systems is very difficult to achieve, while an availability attack is much easier to obtain due to the failsafe nature of such systems. It is totally not better. Worse. If you shutdown power & light of a city, you can probably hurt or kill even more people than by making the plant work improperly.
- toast0 9y agoI would bet that running a power plant in wrong ways could cause worse harm in several ways: Damaging the plant equipment such that repair takes a long time. Depending on the control systems available, something like turning off coolant circulation, and running the engine at high load could cause problems quickly. Running the equipment to provide out of spec output which could damage things outside the plant. Possibly transmission lines or other outside equipment or equipment at other plants. Maybe increasing output voltage could ruin outside equipment, and altering output frequency could cause problems with other plants that try to be in frequency lock. These sorts of things could be much worse than an unscheduled outage; in many locations the local power grid spans many power plants and can absorb the loss of one plant, and if not, the local grid is probably fairly unreliable, and critical loads have local generation available.